How to fill in the background material in PS? First open the material you want to fill, and then click Edit-Custom Pattern to make a name point for confirmation; Then open the picture of the background you want to fill, click Edit-Fill, select "Pattern" in the filled content, and then select the picture you just edited from the drop-down menu of custom pattern.

How to make background material 1 with PS, open PS and open a picture on the computer with photoshop software.

2. Select the magnetic lasso tool in the toolbox, and then slowly select the graphics to buckle! When you buckle, you can use all kinds of buckle tools flexibly and buckle carefully! After the graph is buckled out, press ctrl+c of the keyboard to copy the selected area.

3. Then click File-New in the menu to create a new canvas with transparent background! And set the size of the canvas.

4. Press ctrl+v of the keyboard and paste the graphics you just buckled! Now a picture with a transparent background is ready.

How to add background with photoshop? Save PSD format with SAI, and then open it with PS.

If you use a material, open the material, and then drag the layer below the drawing layer.

If you are not sure, you can take a screenshot on HI. QAQ, this is MJ of the house.